FROSTBITE
he's probably dead
Frostbite
Frostbite FULL QUESTION: One of your coworkers has just returned from a lengthy shift at an unsheltered observation post in subfreezing temperatures. Your coworker informs you that he had to remove his gloves during his shift, and the skin on his hand is now cold and hard to the touch. What could be wrong?
If the skin is hard, white, and developes blisters, frostbite is most likely.
a cold
Thermal conductivity most determines how hot or cold something feels when you touch it. The nerve endings in your skin determine what is hot and cold when you touch it.
After a dead persons' body has been embalmed, their body is usually firm and hard to the touch. It may also be cold, especially if the room that they are in is cold.
Thermal conductivity most determines how hot or cold something feels when you touch it. The nerve endings in your skin determine what is hot and cold when you touch it.
When skin gets cold, blood vessels constrict to conserve heat and reduce blood flow to the skin's surface. This can lead to a pale appearance and make the skin feel cold to the touch. Prolonged exposure to cold temperatures can also cause skin damage, such as frostbite.
Diamond feels neither cold nor hot to the touch because it has high thermal conductivity, meaning it quickly adjusts to the temperature of your skin. This property makes it feel like it is at the same temperature as your skin.
When you touch an ice cube, heat is transferred from your skin to the ice cube. This heat transfer lowers the temperature of your skin, triggering nerve endings that sense cold temperature. This sensation of cold is a signal sent to your brain that tells you the ice cube is colder than your skin.
To the touch your skin is warm. When you reach in something cold such as a fridge or freezer the temperature difference is what makes your hands feel cold.